Correct option is A
The correct meaning of the given word is (a) Uncertain or open to interpretation.
Ambiguous means something that can have more than one meaning, unclear (अस्पष्ट).
Example: The ambiguous statement confused everyone.
Other options explained:
(b)
Harsh and severe: Means cruel or very strict (कठोर)
(c)
Funny and humorous: Causing laughter (हास्यपूर्ण)
(d)
Clear and straightforward: Opposite of ambiguous (स्पष्ट और सरल)